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#!/usr/bin/env python
from __future__ import absolute_import
"""Unit tests for M2Crypto.RC4.
Copyright (c) 2009 Heikki Toivonen. All rights reserved."""
from M2Crypto import RC4, Rand
from binascii import hexlify
from tests import unittest
from tests.fips import fips_mode
class RC4TestCase(unittest.TestCase):
@unittest.skipIf(fips_mode, "Can't be run in FIPS mode")
def test_vectors(self):
"""
Test with test vectors from Wikipedia: http://en.wikipedia.org/wiki/Rc4
"""
if fips_mode:
return
vectors = ((b'Key', b'Plaintext', b'BBF316E8D940AF0AD3'),
(b'Wiki', b'pedia', b'1021BF0420'),
(b'Secret', b'Attack at dawn',
b'45A01F645FC35B383552544B9BF5'))
rc4 = RC4.RC4()
for key, plaintext, ciphertext in vectors:
rc4.set_key(key)
self.assertEqual(hexlify(rc4.update(plaintext)).upper(),
ciphertext)
self.assertEqual(rc4.final(), '')
@unittest.skipIf(fips_mode, "Can't be run in FIPS mode")
def test_bad(self):
if fips_mode:
return
rc4 = RC4.RC4(b'foo')
self.assertNotEqual(hexlify(rc4.update(b'bar')).upper(), b'45678')
def suite():
return unittest.TestLoader().loadTestsFromTestCase(RC4TestCase)
if __name__ == '__main__':
Rand.load_file('randpool.dat', -1)
unittest.TextTestRunner().run(suite())
Rand.save_file('randpool.dat')
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